how to prepare when your opponent plays fast and loose with the facts. top of the hour with a good day to all of you from msnbc world headquarters in new york. welcome, everyone, to alex witt reports. we begin with extreme weather, with more than 90 million americans under heat alerts as temperatures reach triple digits in some areas. at the columbus, ohio zoo, workers are working around the clock to keep those animals cool. our polar bears have a cool pool. they also have access to an air-conditioned building. are red pandas have boxes and they have air-conditioning in them, and we allow that has many choices and options as possible, so they can use the environment to alleviate themselves from the seat. meanwhile, people are flocking to the beach today from some relief from the sweltering temperatures. we have several reporters in place covering all these developers for us. we will begin with nbc s george sully s outside a hospital in philadelphia. i hope it is not too